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The effect of CPAP therapy on excessive daytime sleepiness and quality of life in subjects with obstructive sleep apnoea: an AB design study

  • Sleep Breathing Physiology and Disorders • Original Article
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Abstract

Background

Obstructive sleep apnoea (OSA) is a disorder characterized by apnoeas and hypopnoeas due to repetitive upper airway collapse during sleep. So far, there are no published data regarding quality of life (QoL) and adherence to CPAP among patients with OSA in India. This study aims to measure sleepiness and QoL of patients before and after effective CPAP use in patients with OSA.

Method

Newly diagnosed subjects with OSA were included, and socio-demographic risk factors and anthropomorphic measures were collected. Epworth sleepiness scale (ESS) and short sleep apnoea quality of life index (SAQLI) were administered before and after a minimum of 4 weeks of domiciliary CPAP use. While short SAQLI is a disease-specific questionnaire, ESS measures excessive daytime sleepiness.

Results

In 92 subjects age range was 28–74 years, mean age 49.7 ± 11.3 years, and male:female ratio was 70:22. Mean BMI was 32.1 ± 6.4 kg/sq.m; mean neck circumference was 39.4 ± 3.4 cm; 56 subjects had Mallampati score of 3 or 4. One-month follow-up was completed by 34 subjects who reported a mean of 5.8 ± 1.1 hours/night usage of CPAP. Mean ESS score was 11.31 ± 5.6 at baseline vs 6.9 ± 3.3 after 1 month (p = 0.02), and baseline short SAQLI score was at 2.54 ± 1.26 vs 1.38 ± 0.87 after 1 month (p = 0.0001).

Conclusions

Subjects reported adequate compliance with CPAP at 1 month, and both ESS and short SAQLI showed a significant improvement in these patients. CPAP compliance improved both QoL and sleepiness in patients with OSA.

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Authors and Affiliations

  1. Department of Pulmonary Medicine, St. John’s National Academy of Health Sciences, Bengaluru, India

    Kavitha Venkatnarayan, Uma Devaraj, Chitra Veluthat, Varghese Louis, Priya Ramachandran, George D’Souza & Uma Maheswari Krishnaswamy

  2. St. John’s Medical College, 3rd floor, PFT Lab, Oncology Block, Sarjapur Road, Bangalore, 560034, India

    Uma Devaraj

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  1. Kavitha Venkatnarayan
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Correspondence to Uma Devaraj.

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Venkatnarayan, K., Devaraj, U., Veluthat, C. et al. The effect of CPAP therapy on excessive daytime sleepiness and quality of life in subjects with obstructive sleep apnoea: an AB design study. Sleep Breath 25, 1351–1357 (2021). https://doi.org/10.1007/s11325-020-02237-4

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  • DOI: https://doi.org/10.1007/s11325-020-02237-4

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